I just published my complete Dice Making Mold Collection stls. 100% open source and free (even commercially)!

Check Out The Collection Here And Print It Yourself

It includes files for Full Sets, single die, a special form that allows you to fit 4 molds into a pressure pot at the same time, and optional accessories.

https://www.printables.com/model/1331641-complete-silicon-dice-making-mold-collection